Overview

This document presents technical data and measurement results for Phonak Audéo M hearing aids, compliant with IEC 60118-0 : 2015 and ANSI / ASA S3.22-2014 standards. It includes output sound pressure levels, acoustic gain, total harmonic distortion, frequency response, equivalent input noise levels, and expected operating times for different receiver types.

1. Output Sound Pressure Level (SPL)

• Measured maximum output SPL ranges from 106 dBSPL to 130 dBSPL depending on receiver type (S, M, UP, P receivers).
• Typical values: S Receiver around 111-114 dBSPL, M Receiver 111-114 dBSPL, UP Receiver 120-122 dBSPL, P Receiver up to 130-140 dBSPL.

2. Acoustic Gain

• Acoustic gain varies by frequency and receiver type, with values between 39 dB and 67 dB.
• Example: M Receiver shows gains of 46 dB to 50 dB; UP Receiver gains up to 58 dB.

3. Total Harmonic Distortion (THD)

• THD is low across frequencies 500 Hz, 800 Hz, 1600 Hz, and 3200 Hz, generally between 1.0% and 2.0%.
• Lower distortion values indicate high fidelity sound reproduction.

4. Frequency Range

• Frequency response covers approximately <100 Hz to 6000-8000 Hz depending on receiver type.
• HFA (High-Frequency Average) measurements are used to characterize performance.

5. Equivalent Input Noise Level

• Equivalent input noise level is consistently 19 dBSPL across all receiver types.

6. Expected Operating Time

• Battery life is approximately 18 hours under typical conditions.
• Operating time depends on active features, wireless accessory use, hearing loss severity, battery age, and sound environment.

7. Measurement Conditions and Standards

• Measurements performed with Phonak Target software using specific settings: linear mode operation, low-level expansion active, RTS adjustment with volume control.
• Data comply with IEC 60118-0 : 2015 and ANSI / ASA S3.22-2014 standards.

8. Frequency Response Graphs

Graphs illustrate full-on gain and basic frequency response at input levels of 50 dBSPL, 60 dBSPL, and 90 dBSPL across frequencies from 100 Hz to 10,000 Hz. These show the hearing aids’ amplification characteristics and confirm compliance with standard frequency response profiles.

Critical Information Summary

• Output SPL and acoustic gain vary by receiver type but remain within standard limits.
• Low total harmonic distortion ensures sound quality.
• Frequency range supports speech frequencies effectively.
• Battery life is sufficient for daily use but varies with usage conditions.
• Testing adheres to recognized international standards ensuring reliability and comparability.